【单选题】It can be argued that much consumer dissatisfaction with marketing strategies arises from an inability to aim advertising at only the likely buyers of a given product. There are three groups of consum...
A.
They can be used only when direct selling is not economically feasible.
B.
They are used only for very expensive products.
C.
They are rarely used in marketing programs for industrial products.
D.
They are used only when direct selling has not reached the appropriate segment.